基于CFD的垃圾中转站总图设计

以厦门地区主导风向、风速为初始条件，结合CFD软件建立理想模型，模拟垃圾中转站恶臭污染物扩散范围。结果表明在以垃圾中转站为起点，沿主导风向60m的区域范围内，恶臭污染物浓度大于允许值，并以此为原则进行总图设计。纳入垃圾中转站周边敏感建筑建立实际模型进行模拟计算验证，模拟结果表明：本项目在夏季、冬季主导风向下垃圾中转站周围部分敏感建筑受到恶臭污染物影响，但污染物浓度很小，符合要求；在对夏季静风模拟中西北、西南方向住宅室外环境恶臭污染物浓度超过规范标准，应采取技术措施降低其恶臭污染物的生成量；采取除臭措施后，西北、西南方向住宅室外环境恶臭污染物显著降低，符合要求。

General Layout Design of Garbage Station based on CFD Simulation

This paper establishes an ideal model using CFD software by taking the dominant wind direction and speed as the initial condition in Xiamen to simulate the pollutant diffusion range of garbage transfer station. The results shows that the concentration of the odor pollutant was greater than the allowable value in the regional range of sixty meters, which is seen as a basis to guide the general layout. Through establishing an actual model and simulate calculation considering the sensitive building around the garbage transfer station, the result shows that, under the domain wind direction of the summer and winter, some sensitive buildings would be easily polluted, but with small pollutant concentration meeting the regulatory requirements. However, under the static wind of summer, the pollutant concentration of the residential buildings in the northwest and southwest directions would become over the standard requirements, and technical measures should be adopted to reduce the pollutant production of the garbage transfer station. After the adoption, the pollutant concentration of the residential buildings in the northwest and southwest reduces significantly, and meets the regulatory requirements.